I'm sorry, but I don't understand how a senior officer resigning would help any of the above situations. All it would do would be to give the media five minutes to report on things that are already widely known, thus damaging the image of the forces even more, not helping it!
Then we'd just have to wait for someone else to be promoted into the gap left, and have to pick up the pieces and pretty much start over.
You say you want a senior officer to resign on principle, isnt this a catch 22? As having a senior officer who is willing to resign on principle of whats going on, just the sort of person you want in the job in the first place?!
(he says whilst running to the nearest exit)